Tuber
Pronunciation : Tu"ber
Part of Speech : n.
Etymology : [L., a hump. knob; probably akin to tumere to swell. Cf. Tumid.]
Definition : 1. (Bot.) (a) A fleshy, rounded stem or root, usually containing starchy matter, as the potato or arrowroot; a thickened root-stock. See Illust. of Tuberous. (b) A genus of fungi. See Truffle.
2. (Anat.)
Defn: A tuberosity; a tubercle.
Source : Webster's Unabridged Dictionary, 1913